The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1998
Filed:
Jul. 26, 1996
Applicant:
Inventors:
Guoliang Shou, Tokyo, JP;
Changming Zhou, Tokyo, JP;
Kazunori Motohashi, Tokyo, JP;
Xiaoling Qin, Tokyo, JP;
Shengmin Lin, Tokyo, JP;
Makoto Yamamoto, Tokyo, JP;
Sunao Takatori, Tokyo, JP;
Assignees:
Yozan Inc., Tokyo, JP;
Sharp Kabushiki Kaisha, Osaha, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; G11C / ;
U.S. Cl.
CPC ...
327552 ; 327554 ; 327 94 ; 327403 ; 327361 ; 36472411 ;
Abstract
An object of the present invention is to provide a matched filter circuit of small size and consuming low electric power. Paying attention that a spreading code is a 1 bit data string, an input signal is sampled and held as an analog signal along the time sequence, classified into '1' and '-1' and the classified signals are added in parallel by capacitive coupling in a matched filter circuit according to the present invention.